CMS Made Simple Forums

I can't figure out why the LISE instance always adds a number to the end of an item detail url.
My url template is

{$prefix}/{$item_title}

But the detail page url always appends

/34

to every item.
e.g. https://d4creative.com.au/portfolio/the ... _adjusting becomes https://d4creative.com.au/portfolio/the ... justing/34

Why is this happening? It doesn't seem like a good SEO friendly pretty url if its always adding some random number.

Thanks in advance for any clues on where this extra digits are coming from!?

Okay, I have figured out that "34" is the content ID of my detail page. But why is it being appended to the url of the detail content being loaded from LISE instance?
If the page url of the Detail page being used for out is "projects" then why does the final item url; not include that?
i.e.